Great-circle route IAH ↔ LAS. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample. The two directions are not identical — that is normal on scheduled routes.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| IAH → LAS Houston to Las Vegas |
60/wk | Daily | Frontier Airlines, United Airlines |
| LAS → IAH Las Vegas to Houston |
61/wk | Daily | Frontier Airlines, United Airlines |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 1,047,116 passengers on 7,150 flights between IAH and LAS — about 2,870 a day — filling 80% of the 1,309,192 seats flown. United Air Lines Inc. carried the most passengers (68%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
2 airlines fly the IAH–LAS nonstop, including Frontier Airlines, United Airlines.
Recent scheduled departures on this route have used the Boeing 737-800, Airbus A320, Boeing 737-900, Boeing 737 and 1 other types.
Aircraft assignments change by season and by time of day.
The distance between George Bush Intercontinental Houston Airport and McCarran International Airport is 1,220 miles, or 1,963 kilometres.
| Great-circle distance | 1,220 mi |
| Kilometres | 1,963 km |
| Nautical miles | 1,060 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 2 airlines fly the route nonstop, with about 121 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 2h 59m in the air. That is a great-circle estimate from the 1,220-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
About 60 a week from Houston to Las Vegas and 61 a week from Las Vegas to Houston, from our most recent schedule sample.
Frontier Airlines, United Airlines.
In 2025, airlines reported 1,047,116 passengers on 7,150 scheduled flights between IAH and LAS — about 2,870 a day — filling 80% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 737-800, Airbus A320, Boeing 737-900, Boeing 737. Assignments change by season and by time of day.
